Fix group id

Author: jeffgbutler

pom.xml

@@ -22,7 +22,7 @@
     <artifactId>mybatis-parent</artifactId>
     <version>29</version>
   </parent>
-  <groupId>org.mybatis.dynamic.sql</groupId>
+  <groupId>org.mybatis.dynamic-sql</groupId>
   <artifactId>mybatis-dynamic-sql</artifactId>
   <version>0.5.0-SNAPSHOT</version>
   <name>MyBatis Dynamic SQL</name>